BPV Formula and Size Restrictions for SFB Ship Construction
Max Number of SSD Boxes that can be fitted into an SSD outline (including Warp Engines)
Movement Cost
0.1: 10
0.2: 20
0.25: 30
0.33: 40
0.5: 60
0.66: 80
0.75: 80
1: 100
1.25, 1.33: 110
1.5: 120
1.66, 1.75: 140
2: 160
Larger Ships: 320
Bases: 800
Turn Mode Generation
Movement Cost
0.1: AAA
0.2: AA
0.25: AA, A
0.33: A
0.5: A, B
0.66, 0.75: B, C
1: C, D (B for Klingons)
1.25, 1.33: C, D
1.5: D, E, F
1.66, 1.75: E, F, G
2: F, G, H
Larger Ships: G, H, I, J
Crew Unit Count
Movement Cost
0.1, 0.2: 1-4
0.25: 6-15
0.33: 11-19
0.5: 20-29
0.66, 0.75: 30-39
1: 40-49
1.25, 1.33, 1.5: 50-69
1.66, 1.75: 70-79
2: 80-89
Larger Ships: 90-4000
Bases: 100-16000
Klingon: +1d6
Kzinti and Gorn: +1d10
Boarding Party Count
Movement Cost
0.15, 0.2: 1
0.25: 4
0.33: 5
0.5: 6
0.66, 0.75: 8
1: 10
1.25, 1.33: 12
1.5: 14
1.66, 1.75: 20
2: 30
Larger Ships: 40
Bases: 50-60
Klingon: +2
Kzinti and Gorn: +6
Shield Facings
Usually makes #1 Shield equal to ship's total Warp Power, and #2 and #6 Shield is 2/3s to 4/5s that of the #1 Shield. #3, #5 and #4 Shields are 1/3 to 4/5s that of the #1 Shield
Sensor/Scanner/Damcon/Excdam
Movement Cost
.15: 6-0 (0-8) (2-0) (1)
.2: 6-3-0 (0-5-9) (2-0) (1)
.25: 6-5-3-0 (0-0-5-9) (2-2-0) (3)
.33, .5: 6-5-5-3-0 (0-1-3-5-9) (2-2-2-0) (4)
.66, .75: 6-5-4-2-0 (0-1-3-5-9) (4-2-2-2-0) (5)
1: 6-6-5-4-2-0 (0-0-1-3-5-9) (4-4-2-2-2-0) (6)
1.25, 1.33: 6-6-5-4-2-0 (0-0-1-3-5-9) (6-4-4-2-2-2-0) (7)
1.5: 6-6-6-6-5-4-3-2-1-0 (0-0-0-0-1-2-3-4-5-9) (6-6-4-4-2-2-2-0) (12)
1.66, 1.75: 6-6-6-6-5-4-3-2-1-0 (0-0-0-0-1-2-3-4-5-9) (8-8-6-6-4-4-2-2-2-0) (14)
2: 6-6-6-6-5-4-3-2-1-0 (0-0-0-0-1-2-3-4-5-9) (8-8-6-6-6-4-4-2-2-2-2-0) (16)
Larger Ships: 6-6-6-6-6-6-5-4-3-2-1-0 (0-0-0-0-0-0-1-2-3-4-5-9) (8-8-8-8-6-6-6-6-6-6-4-4-4-2-2-2-2-0) (20)
A: Klingons get -1, -2 for Movement Cost 1 or higher
B: For each additional 1X in Tech Level, add 1 Damcon, typically 6 or higher
BPV Calculation
Determining the final BPV of the completed ship is fairly simple. Use the following formula when calculating:
Total system cost of ALL systems in the ship, not including Scanner or Damage Control boxes.
Take the total figure and divide by 4. Round appropriately.
This should give you a more than 90% accurate reading of the BPV of the ship.
Use the chart below for determining the cost of each system.
· Note that not all the systems listed here are available to the Federation, but they are given here only for reference.
The following is an example of the way the formula should work:
Federation Frigate
Add the cost of all boxes on ship, including Warp and Scanner
Now take the Total points and divide by 4. The result is 70.75. Round this number appropriately. That brings the number to 71. This is the final BPV of the vessel. You will note, the official BPV of the Federation Frigate is, indeed, 71 points.
I have found that I can get reasonably close, if not right on, the BPV of the official ships, therefore ships designed with my system should come out with a reasonably accurate BPV. However, as with all formulas, there will always be some inconsistencies. Playtesting is the only true way of determining if the final BPV is, in fact, accurate.
Brothers of the Anarchist
For Klingons, add 1/1/2/4/8 Scty for Size 5/4/3/2/1
When converting Klingon to Non-Klingon, change Scty to Hull
Subtract 2 Crew Units, 4 for Federation, Add 4 for Kzinti and Gorn
Add 2 Boarding Parties, 4 for Klingon, 6 for Kzinti and Gorn
For Romulan, (Movie) Klingons and some Orions, add Cloaking Device and multiply BPV by x1.1
Consult the Chart below for Weapon Exchange and a few extra boxes added/exchanged
Race Heavy Phaser Alt Extra
Fed Phtn Ph-1 Drn Lab
Kli Disr Ph-1/2 Drn Tran
Rom Plas Ph-1 Pl-D Btty
Kzi Disr Ph-1/3 Drn Tran
Gor Plas Ph-1 Car GAS
Ori Opt Ph-1/3 Drn Cargo
Tho Disr Ph-1/3 Web Hull
Hyd Fus,HB Ph-2 Fight Hull
And TR Ph-2 DD PA, Btty
Lyr Disr Ph-1/3 ESG APR
LDR Disr Ph-1/G ESG APR
WYN Disr,Opt Ph-1 Drn APR
ISC Plas,PPD Ph-1/3 PlF Shtl
Sel PC, Ph-1/3 WB,SC GAS
Jin WRG Ph-1 LRG NWO
Vud ION Ph-1/2 IPG Imp
Par QWT Ph-2 N/A NWO
Car DC Ph-2 DB,HN Hull
Simulator Race Chart
Race Heavy Phaser Alt Extra
FRAX Disr Ph-1/AFD Drn Imp
Bri Disr Ph-1/3 Drn Imp
Shk Plas Ph-1/3 CT,BT Imp
Qari KKC Ph-1/3 Drn Turret Armor
Flv HDrn Ph-1/3 N/A Cargo, replace 2/5s Warp with HoverWarp
Bar Opt Ph-1/3 Opt PO, NWO
Tri Pl-A Ph-1/3 Pl-D Imp, Shtl
Del Phtn Ph-1 ADD AWR
Can Disr,Mlr Ph-1/3 Pl-D Lab
His Prot Ph-1/G Drn Imp
Explosion Strength Generation
SFB Total Power
1-2: 1
3-4: 2
5-6: 3
7-8: 4
9-10: 5
11-12: 6
13-14: 7
15-16: 8
17-18: 9
19-20: 10
21-22: 11
23-26: 12
27-28: 13
29-30: 14
31-32: 15
33-34: 16
35-36: 17
37-40: 18
41-44: 19
45-48: 20
49-50: 21
51-52: 22
53-56: 23
57-58: 24
59-60: 29
61-65: 31
66-70: 32
71-78: 35
79-82: 38
83-85: 41
86-87: 42
88-91: 44
92-100: 48
101-110: 52
111-120: 56
121-130: 60
131-150: 70
151-180: 80
181-200: 90
201-250: 100
251-300: 120
301-350: 140
351-400: 160
401-450: 180
451-500: 200
501-550: 250
551-600: 300
601-650: 350
651-700: 400
701-750: 450
751-800: 500
801-1000: 550
1001-1200: 600
1201-1400: 650
1401-1500: 700
1501-1550: 750
1551-1600: 800
1601-1650: 850
1651-1700: 900
1701-1750: 950
1751-2000: 1000
2001-2500: 1100
2501-4000: 1200
4001-5000: 1300
5001-6000: 1400
6001-7000: 1500
7001-8000: 1600
8001-10000: 1800
10001-13000: 2000
13001-16000: 2500
16001-20000: 4000
+4000: +1000
Life Support Costs
Size
1: 3
2: 2
3: 1
4: 0.5
5-8: 0
Shield Costs
Size
1: 2+5
2: 1+3
3: 1+1
4: .5+.5
5: .25+.25
Minimum Crew
Crew Units
1-4- 1
5-8- 2
9-12- 3
13+- 4
13+ (1X)- 8
13+ (2X)- 10
13+ (3X+)- 1
And Now, John H. Kim's own notes on Ship Construction